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选用高Tc超导薄膜YBa2Cu3O7-8,引用半导体集成工艺,制出2×8元列阵红外探测器,其探测率D均达到10^8 ̄10^9cm·Hz^1/2·W^-1,工作温度为89K。 相似文献
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选用高Tc超导薄膜YBa3Cu3o7-8,引用微加工技术,制出了4*4元面工外探测器,超导膜用湿法工艺光刻成折线结构,总线长约2000μm,可提高敏感元工作电阻率。 相似文献
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根据高Tc超导红外探测器成像原理,制成了8元线列超导红外探测热成样机。文中给出了样机对8 ̄14um红外波和的测试结果,证明高Tc超导红外探测器在长波红外成像的可行性,获得了探索热成像系统的初步经验。 相似文献
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(Pb,La)TiO3铁电薄膜的制备及热释电性能研究 总被引:1,自引:1,他引:1
讨论了PLT15铁电薄膜的溶胶-凝胶制备技术,及PLT薄膜的结构和电性能研究。结果表明,在Si基片上成功地生长出钙钛矿型结构多晶铁电薄膜,在(111)Pt/Ti/SiO2/Si上外延生长出(111)PLT15铁电薄膜。溶胶-凝胶制备的PLT15铁电薄膜具有优良的热释电性能,其热释电系数p为5.25×10-8Ccm-2K-1,电压响应率优值FV达到0.78×10-10Ccm/J,探测率优值Fm为1.13×10-8Ccm/J,适于制备热释电红外探测器 相似文献
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高温超导红外探测器对1—1000μm波段的光谱响应 总被引:2,自引:2,他引:0
采用YBaCuO高温超导薄膜,制成芯片为蛇形的Tc超导Bolometer,对1 ̄1000μm波段的光谱响应进行了测量,本文报道了实际测量结果,表明高温超导红外探测器在红外-毫米波段有应用前景。 相似文献
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文章对高温超导薄膜红外探测器进行了基本理论分析,给出了器件设计思想,并报导了用高TcGdBa2Cu3O7-x薄膜制备的单元红外探测器,2×2阵列红外探测器的实验结果。在液氮温度下得到的最好结果是噪声等效功率NEP(500,10,1)=3.8×10-12WHz-1/2,探测率D*=1.7×1010cmHz1/2W-1,响应度Rv=3312VW-1。器件经过十多次的冷热循环,并在室温下保存一年以上。所得测量结果基本不变。 相似文献
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本文首次报道了利用微透镜阵列来提高YBCO高Tc超导薄膜红外探测器的光响应特性,介绍了利用光刻/离子束刻蚀的方法制作单片线列石英微透阵列的工艺以及制备线列YBCO高Tc超导薄膜红外探测器的方法,并将所制的石英微透镜阵列应用于YBCO超导器件。 相似文献
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Michael Reilly 《半导体技术》2004,29(12)
DUV lithography, using the 248 nm wavelength, is a viable manufacturing option for devices with features at 130 nm and less. Given the low kl value of the lithography, integrated process development is a necessary method for achieving acceptable process latitude. The application of assist features for rule based OPC requires the simultaneous optimization of the mask, illumination optics and the resist.Described in this paper are the details involved in optimizing each of these aspects for line and space imaging.A reference pitch is first chosen to determine how the optics will be set. The ideal sigma setting is determined by a simple geometrically derived expression. The inner and outer machine settings are determined, in turn,with the simulation of a figure of merit. The maximum value of the response surface of this FOM occurs at the optimal sigma settings. Experimental confirmation of this is shown in the paper.Assist features are used to modify the aerial image of the more isolated images on the mask. The effect that the diffraction of the scattering bars (SBs) has on the image intensity distribution is explained. Rules for determining the size and placement of SBs are also given.Resist is optimized for use with off-axis illumination and assist features. A general explanation of the material' s effect is discussed along with the affect on the through-pitch bias. The paper culminates with the showing of the lithographic results from the fully optimized system. 相似文献
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Thomas M.Trexler 《半导体技术》2004,29(5)
From its emergence in the late 1980s as a lower cost alternative to early EEPROM technologies, flash memory has evolved to higher densities and speedsand rapidly growing acceptance in mobile applications.In the process, flash memory devices have placed increased test requirements on manufacturers. Today, as flash device test grows in importance in China, manufacturers face growing pressure for reduced cost-oftest, increased throughput and greater return on investment for test equipment. At the same time, the move to integrated flash packages for contactless smart card applications adds a significant further challenge to manufacturers seeking rapid, low-cost test. 相似文献
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The relation between the power of the Brillouin signal and the strain is one of the bases of the distributed fiber sensors of temperature and strain. The coefficient of the Bfillouin gain can be changed by the temperature and the strain that will affect the power of the Brillouin scattering. The relation between the change of the Brillouin gain coefficient and the strain is thought to be linear by many researchers. However, it is not always linear based on the theoretical analysis and numerical simulation. Therefore, errors will be caused if the relation between the change of the Brillouin gain coefficient and the strain is regarded as to be linear approximately for measuring the temperature and the strain. For this reason, the influence of the parameters on the Brillouin gain coefficient is proposed through theoretical analysis and numerical simulation. 相似文献
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The parallel thinning algorithm with two subiterations is improved in this paper. By analyzing the notions of connected components and passes, a conclusion is drawn that the number of passes and the number of eight-connected components are equal. Then the expression of the number of eight-connected components is obtained which replaces the old one in the algorithm. And a reserving condition is proposed by experiments, which alleviates the excess deletion where a diagonal line and a beeline intersect. The experimental results demonstrate that the thinned curve is almost located in the middle of the original curve connectivelv with single pixel width and the processing speed is high. 相似文献
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Today, micro-system technology and the development of new MEMS (Micro-Electro-Mechanical Systems) are emerging rapidly. In order for this development to become a success in the long run, measurement systems have to ensure product quality. Most often, MEMS have to be tested by means of functionality or destructive tests. One reason for this is that there are no suitable systems or sensing probes available which can be used for the measurement of quasi inaccessible features like small holes or cavities. We present a measurement system that could be used for these kinds of measurements. The system combines a fiber optical, miniaturized sensing probe with low-coherence interferometry, so that absolute distance measurements with nanometer accuracy are possible. 相似文献
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Qi-jiang Ran Pei-de Han Yu-jun Quan Li-peng Gao Fan-ping Zeng Chun-hua Zhao 《光电子快报》2008,4(4):239-242
This paper presents a new method to increase the waveguide coupling efficiency in hybrid silicon lasers. We find that the propagation constant of the InGaAsP emitting layer can be equal to that of the Si resonant layer through improving the design size of the InP waveguide. The coupling power achieves 42% of the total power in the hybrid lasers when the thickness of the bonding layer is 100 nm. Our result is very close to 50% of the total power reported by Intel when the thickness of the thin bonding layer is less than 5 nm. Therefore, our invariable coupling power technique is simpler than Intel's. 相似文献
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It is well known that adding more antennas at the transmitter or at the receiver may offer larger channel capacity in the multiple-input multiple-output(MIMO) communication systems. In this letter, a simple proof is presented for the fact that the channel capacity increases with an increase in the number of receiving antennas. The proof is based on the famous capacity formula of Foschini and Gans with matrix theory. 相似文献
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Teleportation of an arbitrary unknown N-qubit entangled state under the controlling of M controllers
A new quantum protocol to teleport an arbitrary unknown N-qubit entangled state from a sender to a fixed receiver under M controllers(M < N) is proposed. The quantum resources required are M non-maximally entangled Greenberger-Home-Zeilinger (GHZ) state and N-M non-maximally entangled Einstein-Podolsky-Rosen (EPR) pairs. The sender performs N generalized Bell-state measurements on the 2N particles. Controllers take M single-particle measurement along x-axis, and the receiver needs to introduce one auxiliary two-level particle to extract quantum information probabilistically with the fidelity unit if controllers cooperate with it. 相似文献
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A continuous-wave (CW) 457 nm blue laser operating at the power of 4.2 W is demonstrated by using a fiber coupled laser diode module pumped Nd: YVO4 and using LBO as the intra-cavity SHG crystal With the optimization of laser cavity and crystal parameters, the laser operates at a very high efficiency. When the pumping power is about 31 W, the output at 457nm reaches 4.2 W, and the optical to optical conversion efficiency is about 13.5% accordingly. The stability of the out putpower is better than 1.2% for 8 h continuously working. 相似文献
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《中国通信》2014,(7)
正Wireless Body-area Networks The last decade has witnessed the convergence of three giant worlds:electronics,computer science and telecommunications.The next decade should follow this convergence in most of our activities with the generalization of sensor networks.In particular with the progress in medicine,people live longer and the aging of population will push the development of wireless personal networks 相似文献